** Tags added: oem-priority originate-from-2033330 somerville ** Tags added: originate-from-2032928
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.1 in Ubuntu. https://bugs.launchpad.net/bugs/2034504 Title: Enable ASPM for NVMe behind VMD Status in OEM Priority Project: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-6.1 package in Ubuntu: Invalid Status in linux-oem-6.5 package in Ubuntu: Invalid Status in linux source package in Jammy: New Status in linux-oem-6.1 source package in Jammy: Confirmed Status in linux-oem-6.5 source package in Jammy: Confirmed Status in linux source package in Lunar: Confirmed Status in linux-oem-6.1 source package in Lunar: Invalid Status in linux-oem-6.5 source package in Lunar: Invalid Status in linux source package in Mantic: Confirmed Status in linux-oem-6.1 source package in Mantic: Invalid Status in linux-oem-6.5 source package in Mantic: Invalid Bug description: [Impact] ASPM of NVMe behind VMD is not enabled when BIOS FADT doesn't allow ASPM to be modified. That causes higher overall power consumption. [Fix] Allow ASPM to be enabled. While at this, remove old cruft that can interfere upstream VMD driver. [Test] Check the value of `/sys/kernel/debug/pmc_core/slp_s0_residency_usec`. Now system can reach deepest power saving state during sleep. [Where problems could occur] Some NVMe may have I/O issue when ASPM is enabled. But for this scenario the issue will also appear when VMD is disabled. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/2034504/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
